diff --git a/docs/chap-18/bi-c-dictionary/_gethash_accessor.md b/docs/chap-18/bi-c-dictionary/_gethash_accessor.md
index 6317d6692..8ab4407b0 100644
--- a/docs/chap-18/bi-c-dictionary/_gethash_accessor.md
+++ b/docs/chap-18/bi-c-dictionary/_gethash_accessor.md
@@ -8,12 +8,10 @@
 
 <DictionaryLink  term={"gethash"}><b>gethash</b></DictionaryLink> *key hash-table* &amp;optional *default → value, present-p* 
 
-
-
 <!-- **(setf (gethash** *key hash-table* &amp;optional *default<DictionaryLink  term={"t"}><b>*)</b></DictionaryLink> *new-value***)**  -->
-**(setf (gethash** *key hash-table* &amp;optional *default***)** *new-value***)** 
-
-
+```
+(setf (gethash key hash-table &optional default) new-value)
+```
 
 **Arguments and Values:** 
 
diff --git a/docs/chap-18/bi-c-dictionary/gethash_accessor.md b/docs/chap-18/bi-c-dictionary/gethash_accessor.md
index 1e33c85d2..26f5453e1 100644
--- a/docs/chap-18/bi-c-dictionary/gethash_accessor.md
+++ b/docs/chap-18/bi-c-dictionary/gethash_accessor.md
@@ -15,5 +15,8 @@ TODO: Please contribute to this page by adding explanations and examples
 :::
 
 ```lisp
-(gethash )
+(let ((ht (make-hash-table :test #'equal)))
+  (setf (gethash :foo ht) 1)
+  (gethash :foo ht))
+;; => 1, T
 ```